import axios from 'axios'
import {
	ElNotification,
	ElMessageBox,
	ElMessage,
	ElLoading
} from 'element-plus'
import {
	getToken
} from '@/utils/auth'
import errorCode from '@/utils/errorCode'
import {
	tansParams,
	blobValidate
} from '@/utils/ruoyi'
import cache from '@/plugins/cache'
import {
	saveAs
} from 'file-saver'
import useUserStore from '@/store/modules/user'
let downloadLoadingInstance;

// 是否显示重新登录
export let isRelogin = {
	show: false
};

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
// 创建axios实例
const service = axios.create({

	timeout: 30000
})
// request拦截器
service.interceptors.request.use(config => {
	// 是否需要设置 token
	const isToken = (config.headers || {}).isToken === false
	// 是否需要防止数据重复提交
	const isRepeatSubmit = (config.headers || {}).repeatSubmit === false
	if (getToken() && !isToken) {
		config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
	}
	// console.log(getToken() ,!isToken, config.headers)
	// get请求映射params参数
	if (config.method === 'get' && config.params) {
		let url = config.url + '?' + tansParams(config.params);
		url = url.slice(0, -1);
		config.params = {};
		config.url = url;
	}
	if (!isRepeatSubmit && (config.method === 'post' || config.method === 'put')) {
		const requestObj = {
			url: config.url,
			data: typeof config.data === 'object' ? JSON.stringify(config.data) : config.data,
			time: new Date().getTime()
		}
		const sessionObj = cache.session.getJSON('sessionObj')
		if (sessionObj === undefined || sessionObj === null || sessionObj === '') {
			cache.session.setJSON('sessionObj', requestObj)
		} else {
			const s_url = sessionObj.url; // 请求地址
			const s_data = sessionObj.data; // 请求数据
			const s_time = sessionObj.time; // 请求时间
			const interval = 10; // 间隔时间(ms)，小于此时间视为重复提交
			if (s_data === requestObj.data && requestObj.time - s_time < interval && s_url === requestObj.url) {
				const message = '数据正在处理，请勿重复提交';
				console.warn(`[${s_url}]: ` + message)
				return Promise.reject(new Error(message))
			} else {
				cache.session.setJSON('sessionObj', requestObj)
			}
		}
	}
	return config
}, error => {
	console.log(error)
	Promise.reject(error)
})

// 响应拦截器
service.interceptors.response.use(res => {
		// 未设置状态码则默认成功状态
		const code = res.data.code || 200;
		// console.log(code, 'res')
		// 获取错误信息
		const msg = errorCode[code] || res.data.msg || errorCode['default']
		// 二进制数据则直接返回
		if (res.request.responseType === 'blob' || res.request.responseType === 'arraybuffer') {
			return res.data
		}
		if (code === 401) {
			if (!isRelogin.show) {
				ElMessage({
					message: msg,
					type: 'error'
				})
				isRelogin.show = true;
				ElMessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
					confirmButtonText: '重新登录',
					cancelButtonText: '取 消',
					type: 'warning'
				}).then(() => {
					isRelogin.show = false;
					useUserStore().logOut().then(() => {
						location.href = '/index';
					})
				}).catch(() => {
					isRelogin.show = false;
				});
			}
			return Promise.reject('无效的会话，或者会话已过期，请重新登录。')
		} else if (code === 500) {
			ElMessage({
				message: msg,
				type: 'error'
			})
			return Promise.reject(new Error(msg))
		} else if (code === 601) {
			ElMessage({
				message: msg,
				type: 'warning'
			})
			return Promise.reject(new Error(msg))
		} else if (code !== 200) {
			// console.log(res, 'res')
			ElMessage({
				message: msg,
				type: 'error'
			})
			// ElNotification.error({ title: msg })
			return Promise.reject(res.data)
		} else {
			return Promise.resolve(res.data)
		}
	},
	error => {
		console.log('err' + error)
		let {
			message
		} = error;
		if (message == "Network Error") {
			message = "后端接口连接异常";
		} else if (message.includes("timeout")) {
			message = "系统接口请求超时";
		} else if (message.includes("Request failed with status code")) {
			message = "系统接口" + message.substr(message.length - 3) + "异常";
		}
		ElMessage({
			message: message,
			type: 'error',
			duration: 5 * 1000
		})
		return Promise.reject(error)
	}
)

// 通用下载方法
export function download(url, params, filename, method, config, custom, data) {
	downloadLoadingInstance = ElLoading.service({
		text: "正在下载数据，请稍候",
		background: "rgba(0, 0, 0, 0.7)",
	})
	let methodDefault = 'POST'
	if (params) {
		params.method ? methodDefault = params.method : ''
	}
	return service(url, {
		responseType: 'blob',
		// method: method,
		params: methodDefault === 'GET' ? params : '',
		data: methodDefault === 'POST' ? params : '',
		method: methodDefault
	}).then(async (data) => {
		const isBlob = blobValidate(data);
		if (isBlob) {
			const blob = new Blob([data], {
				type: 'application/vnd.ms-excel;charset=utf-8'
			})
			saveAs(blob, filename)
		} else {
			const resText = await data.text();
			const rspObj = JSON.parse(resText);
			const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode['default']
			ElMessage.error(errMsg);
		}
		downloadLoadingInstance.close();
	}).catch((r) => {
		console.error(r)
		ElMessage.error('下载文件出现错误，请联系管理员！')
		downloadLoadingInstance.close();
	})
}

//建培圈code为'JPQ'  浙建学堂code为'ZJXT'
export function getProjectCode() {
	let projectTitle = import.meta.env.VITE_APP_TITLE
	return projectTitle === '浙建学堂管理系统' ? 'ZJXT' : 'JPQ'
}
export default service